Table 1.

Somatic HR in atbard1-1 and segregated control plants (A), and in atbard1-2 and segregated control plants (B)

Control			atbard1			Relation
n	N	m1	n	N	m2	m2/m1
(A) No genotoxic stress
35	16	0.46	34	7	0.21	0.46
36	22	0.61	33	6	0.18	0.30
35	36	1.03	33	11	0.33	0.32
Mean		0.70±0.20			0.24±0.08	0.36*
Bleomycin induction (10 μg/ml)
33	2733	77.97	34	803	23.61	0.30
33	1947	61.97	34	393	11.56	0.19
34	2431	57.19	34	342	10.06	0.18
Mean		65.71±10.88			15.08±7.43	0.22*
(B) No genotoxic stress
33	16	0.48	34	2	0.06	0.13
31	20	0.65	32	3	0.09	0.14
34	22	0.65	34	1	0.03	0.04
Mean		0.59±0.10			0.06±0.03	0.10*
Bleomycin induction (10 μg/ml)
34	1422	41.82	34	28	0.82	0.02
34	3063	90.09	34	65	1.91	0.02
33	2673	81.00	34	84	2.47	0.03
Mean		70.97±25.65			1.73±0.84	0.22*
Data are numbers of plants tested (n), total blue stained recombination spots (N), and the mean number of spots per plant per chromosomal recombination assay (m1: control; m2: atbard1) in three different experiments (*calculated from the means of the three experiments).